Specifications
Kit
Espressif ESP-Mosaico
Type
Expandable smart-interaction development kit
MCU
ESP32-S31NRV16
CPU
2x 32-bit RISC-V cores up to 320 MHz, SIMD acceleration on one core
Memory
16 MB in-package PSRAM, 512 KB SRAM
Flash
16 MB onboard SPI NOR
NAND
1 Gbit (128 MB) SPI NAND for graphics and multimedia assets
Wireless
2.4 GHz Wi-Fi 6, Bluetooth 5.4 with Bluetooth Classic, IEEE 802.15.4 (Thread / Zigbee)
Display
2.16-inch square touch display (AMOLED)
Multimedia
JPEG codec, pixel-processing accelerator, LCD and camera controller
USB
USB 2.0 High-Speed OTG
Networking
Ethernet MAC and CAN-FD controller
Audio
Onboard speaker on the BaseBoard
Sensors
Motion and magnetic sensors
Haptics
Haptic feedback actuator
Structure
CoreBoard + BaseBoard joined by a 60-pin board-to-board connector
Battery
3.7 V 65 mAh Li-ion on the BaseBoard
Expansion
Two 2x10-pin, 2.54 mm-pitch expansion headers
Overview
The ESP-Mosaico is Espressif's smart-interaction development kit built on the ESP32-S31NRV16. That part provides two 32-bit RISC-V cores running to 320MHz with SIMD acceleration on one core, 16MB of in-package PSRAM and 512KB of SRAM, which is enough headroom for on-device graphics and voice processing rather than a plain sensor node.
Connectivity is unusually complete for a dev kit: 2.4GHz Wi-Fi 6, Bluetooth 5.4 including Bluetooth Classic, and an IEEE 802.15.4 radio for Thread and Zigbee. The SoC also integrates a JPEG codec, a pixel-processing accelerator, LCD and camera controllers, USB 2.0 High-Speed OTG, an Ethernet MAC and a CAN-FD controller.
Physically the kit splits into a CoreBoard and a BaseBoard joined by a 60-pin board-to-board connector, which lets the compute half be reused in a custom product. The BaseBoard carries the speaker, a 3.7V 65mAh Li-ion cell and two 2x10-pin 2.54mm expansion headers, and the kit ships with 16MB of SPI NOR flash plus a 1Gbit (128MB) SPI NAND device for larger graphical and multimedia assets.
Key Benefits
Dual 320 MHz RISC-V with 16MB PSRAM, Wi-Fi 6 plus Thread/Zigbee in one module, split CoreBoard/BaseBoard for product reuse, and rich multimedia blocks (JPEG codec, LCD and camera controllers).
Applications
HMI and smart-interaction panels, edge voice and multimedia devices, Thread/Zigbee smart-home gateways, industrial control front panels, and prototyping for RISC-V embedded products.
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